Model 4229 and Pneumatic Warning Indicator. Overview. Typical applications

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1 Pneumatic Warning Indicator Model 4229 and 4429 Overview AMOT Model 4229/4429 Pneumatic Indicator offers an inexpensive, highly effective means of displaying the status of pneumatic components in a system. Typical applications Quick and reliable visual indication of pneumatic system status Key features and benefits High contrast display 180 Visibility Panel Mounted Seven Color Combinations Available Pressure Actuated, Spring Return Inherently Explosion-proof Aluminum or Stainless Steel Body ¼ Pipe Connection 4429B1 Stainless Steel Pneumatic Warning Indicator

2 Operation AMOT Model 4229/4429 Pneumatic Indicator is used as an accessory to provide a quick and reliable, visual indication of the status of a pneumatic system. The unit shows a black or red display in the non-pressurized condition and is designed to be panel mounted. The large 5/8 diameter Pressure On display is visible when pressure is applied. The high contrast between the flat black or red At Rest condition and the Pressure On display is abrupt and unmistakable. The pins which comprise the display are visible for 180 around the unit and may be ordered yellow, white, green, or red. In the non-pressurized condition, the array of nineteen indicator pins is concealed within the matrix of the pin guide. When the minimum Installation factors and maintenance operating pressure is applied to the port, the pins extend through the matrix. They will remain in the forward visible condition until the pressure is removed. It is satisfactory for use with clean, dry air or gas in systems with pressures from 1.4 to 10.3 bar (20 to 150 psi). The Indicator does not consume air or gas in either condition. It is non-electric and inherently explosion-proof. AMOT designs and tests all products to ensure that high quality standards are met. This product should last for many years. For good product life, carefully follow AMOT s installation and maintenance instructions; failure to do so could result in damage to the equipment being protected. Model 4229/4429 is suitable for horizontal or vertical mounting on panels to 1/4" thick. A 1-3/16" diameter panel hole is required. Center-tocenter dimension between 4229/4429 units should be 1-1/2" minimum. When mounting, first remove Nut (6). Then slip the unit into the panel hole. Install Nut (6) and secure the unit by tightening the nut. When making pipe connections, apply a quality thread sealant such as Loctite Pipe Sealant to pipe threads. reassembling, make sure Retaining Ring (12) is properly seated and Pin Guide (2) holes are on the Indicator Pins (1). The unit should be checked after reassembly and at least monthly for proper functioning. Periodic inspection, cleaning and lubrication is all the maintenance required on the Indicator. Seal Ring (9) should be cleaned and re-lubricated with Dow Corning No. 33 grease (AMOT No. 911L001), or replaced if damaged or leaking. When Dimensions dimensions in inches (mm) page 2

3 Service Parts Ref no. Part no. Qty Description L001 1 Yellow indicator L002 1 White indicator 1 950IL003 1 Green indicator 1 950IL004 1 Red indicator Black guide L001 1 Red guide Lens L001 1 Seal ring, Buna N/ Nitrile L002 1 Seal ring, Viton Panel gasket, Buna N/ Nitrile L093 1 Retaining ring O-ring, Buna N/ Nitrile O-ring, Viton Specification Body, bezel and nut 4229B Black gulfproofed aluminum 4429B 316 stainless steel Lens and guide Polycarbonate Indicator Polypropylene Piston Ryton Seal ring Standard Buna N (Nitrile) Optional Viton Operating pressure Minimum 1.4 bar 20 psi Maximum 10.3 bar 150 psi Operating temperature Minimum 2 C 35 F Maximum 66 C 150 F Net weight 113g 4 oz Shipping weight 198 g 7 oz page 3

4 How to order Use the tables below to select the unique specification of your 4229/4429 Indicator. Example 4229B1 C 2 -AA Comments Port Thread Material 4229B1 NPT Aluminum (Gulfproofed) Model, Thread and Material 4429B1 NPT Stainless Steel Pressurized Unpressurized A Yellow Black B White Black C Green Black Indicator Color D Red Black E Yellow Red F White Red G Green Red Seal Material 1 Buna N/(Nitrile) Seal Material 2 Viton Special Requirements Special Requirements -AA page 4

5 Americas AMOT USA 8824 Fallbrook Dr Houston TX USA Tel: +1 (281) Fax +1 (713) Europe and Africa AMOT Western Way Bury St Edmunds Suffolk, IP33 3SZ United Kingdom Tel +44 (0) Fax +44 (0) Asia and Australasia AMOT Shanghai Rm United Plaza 1468 Nanjing Road West Shanghai China Tel +86 (0) Fax +86 (0) AMOT Singapore 10 Eunos Road 8 #12-06 Singapore Post Centre Singapore AMOT Controls GmbH Rondenbarg Hamburg Germany Tel +49 (0) Fax +49 (0) germany@amot.com AMOT Russia #34 Shabolovka Street Building 2 Moscow Russia Tel: Fax: Tel Fax singapore@amot.com